Does cactus protect against radiation? Don’t believe rumors about it

In the information technology age, whether you are a student, an office worker, or a retired person, you will inevitably be exposed to computers for a long time every day. Computers bring us convenience but also worries, radiation being the most important one. Cactus can absorb radiation, drinking green tea every day can protect against computer radiation... In life, we always hear various rumors about computer radiation. What are these rumors?

Rumor 1: Cactus protects against radiation

Placing one or two pots of cactus next to the computer can help the human body absorb as little radiation as possible from the computer. Because cacti grow in places with strong sunlight, they have a particularly strong ability to absorb radiation.

The truth revealed:

A computer is placed there, and electromagnetic radiation is emitted in all directions. The strength of the electromagnetic waves is mainly determined by the computer itself, and the cactus cannot shield or absorb it.

Rumor 2: Putting a few bananas on the table can relieve eye discomfort

People who often work in front of computers often feel dry and painful eyes, so put a few bananas on the computer desk. The potassium in bananas can help the body excrete excess salt, allow the body to achieve potassium-sodium balance, and relieve eye discomfort.

The truth revealed:

Additional beta-carotene supplementation is beneficial for patients with vitamin A deficiency, but does not provide additional benefits to people who are not deficient in vitamin A. Generally speaking, dry eyes caused by long-term sitting in front of the computer is caused by visual fatigue. Just make sure to take a break for about 15 minutes every 45-60 minutes to avoid overusing your eyes.

Rumor 3: Take good care of your skin before going online

Do a good job of skin care isolation before going online, which can effectively prevent radiation. In addition, after using the computer, a lot of electromagnetic radiation particles will be absorbed by the face. It is necessary to wash your face with clean water in time, which will reduce the radiation by more than 70%.

The truth revealed:

The electromagnetic radiation of computers mainly comes from the various circuits inside the computers and does not produce anything like small particles of radioactive material.

Myth 4: Computer placement is important

Try not to let the back of the screen face where there are people, because the computer radiation is strongest from the back, followed by the left and right sides. The front of the screen has the weakest radiation. In order to be able to see the words clearly, the distance should be at least 50 cm to 75 cm, so as to reduce the harm of electromagnetic radiation.

The truth revealed:

The computer monitor is only a part of the computer. The amount of radiation it generates is limited, and the amount of radiation depends not only on the position of the monitor, but also on the position of the chassis.

Rumor 5: Install a computer-specific color filter on the display to reduce radiation

When operating a computer, it is best to install a special color filter on the display screen to reduce the harm of radiation. Do not place any metal objects in the room to avoid the re-emission of electromagnetic waves. When using a computer, you must adjust the screen brightness. The brighter the screen, the stronger the electromagnetic radiation.

The truth revealed:

Color filters can only filter out part of the visible light. The computer radiation we refer to is generally radio waves and radio frequency electromagnetic waves, and color filters have no effect on them. Placing metal objects around will have a certain impact on the distribution of the electromagnetic field, but it is often minimal.

Myth 6: Pay attention to indoor ventilation

Computer screens can produce a carcinogen called dibenzofuran bromide. Therefore, it is best to install a ventilation fan in the room where the computer is placed. If not, pay special attention to ventilation when surfing the Internet.

The truth revealed:

Brominated dibenzofuran is the product obtained by oxidative coupling of polybrominated diphenyl ether (PBDE), a flame retardant for plastics. This oxidation process is more common when plastics are burned, but rarely occurs during everyday use. Therefore, under normal circumstances, the amount of brominated dibenzofuran present in plastics is very small and will not be released into the air, so its impact on humans is very small.

There is nothing wrong with paying attention to indoor ventilation, but it is wrong to blame the harm on the computer.

Rumor 7: To resist computer radiation, drink 2 to 3 cups of green tea and eat an orange every morning.

The easiest way to resist computer radiation is to drink 2 to 3 cups of green tea and eat an orange every morning. It is convenient and simple. Vitamin A not only synthesizes rhodopsin, but also helps the eyes see more clearly in dim light. Therefore, green tea can not only eliminate the harm of computer radiation, but also protect and improve eyesight.

The truth revealed:

Green tea is indeed rich in beta-carotene (a precursor of vitamin A), but carotene is a fat-soluble substance and only a small amount is dissolved in tea. Therefore, green tea is not the best source of vitamin A. Moreover, in general, a normal person's daily diet can supplement enough vitamin A or beta-carotene.

Myth 8: Eat more foods rich in vitamin A, C and protein

Pay attention to eating more foods rich in vitamin A, C and protein, such as carrots, bean sprouts, tomatoes, lean meat, animal liver, etc.

The truth revealed:

The nutritional combination of food should be balanced, with a combination of meat and vegetables. If you ignore the intake of other nutrients in order to eat more of the above-mentioned foods, it will be counterproductive.

Myth 9: Buy a newer computer when possible

You should buy a new computer if possible and do not use an old computer. The radiation from an old computer is generally stronger, which is 1 to 2 times that of a new computer under the conditions of the same distance and the same model.

The truth revealed:

This theory looks like an advertisement for selling computers - the difference between new and old computers is mainly in performance, and there may indeed be differences in radiation levels, but the statement that the radiation of old computers is 1-2 times that of new computers is too unfounded.